UVtex FABRICS coating, 5182 aluminum alloy and glass fiber.
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Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($40.58): BG10OFFAFF1
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): aff7off, vipupgrade8, 26d847, TTxBG10, BGss8%hl, bgssaff9, AFfbG10, BGXMUB25, BGUM259, BGTU923, 502C6B, BGUMBR24, BGBFAFF2019, BGCITYADS2019, BGBFI23, BGBGHFRI15, BGPUG249, BGVDay10%off, BGHOMEG12, BGAFF10OFF, bGhOnEy10, BGdragonBoat, bgshOOp10, BGHome15%, BGHOMEA15%, BGINEEDITUM, BGYUS891, BgcLuBofErtA10, BGBFHOME39, BGBFC024, BGXPDE2905, BGHTFEW3, 13f142, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGAP3004, BGMAR0607, BGMAR2001, BGwhielabel, BGJUN153, BGJUY06, BGHU0762
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Umbrella Black. The lowest price was: $19.99.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).